16-11-2017, 06:02 PM
Well I'm the proud owner of a Hameg HM203-4 'scope. I paid £68 for it. I've no idea if that's good value (?) It came with a x10 Hameg probe and the original manual.
It's in very good cosmetic shape and displays a near-perfect sine wave (A small kink at the top of each wave). At first it seemed that it had two faults: The inbuilt sq wave generator for calibrating the probe didn't work (and still doesn't). The output is meant to be 0.2V but was only 0.1. I've adjusted the trimmer on the pcb to its max (but only 0.125V). Has anyone any advice?
Secondly the component tester didn't work. After having a good ferkle inside the gutlings I espied a loose transistor lead. Mending that seems to have restored that particular functionality.
Concerning the first problem I did adjust my sig gen to a 1kHz sq wave and adjusted the probe using that signal. Will that give me the same results as if the Hameg unit had been working properly?
Thanks everyone...
BW
Richard.
It's in very good cosmetic shape and displays a near-perfect sine wave (A small kink at the top of each wave). At first it seemed that it had two faults: The inbuilt sq wave generator for calibrating the probe didn't work (and still doesn't). The output is meant to be 0.2V but was only 0.1. I've adjusted the trimmer on the pcb to its max (but only 0.125V). Has anyone any advice?
Secondly the component tester didn't work. After having a good ferkle inside the gutlings I espied a loose transistor lead. Mending that seems to have restored that particular functionality.
Concerning the first problem I did adjust my sig gen to a 1kHz sq wave and adjusted the probe using that signal. Will that give me the same results as if the Hameg unit had been working properly?
Thanks everyone...
BW
Richard.
